Stilbite Subgroup
Barber's Quarry, Frankford, Philadelphia, Philadelphia County, Pennsylvania, USA
Glassy, colorless radiating crystals of Stilbite, which formed in thin seams within granitic host rock. A Classic specimen from Barber's Quarry, Frankford, Philadelphia, Philadelphia Co, Pennsylvania. Originally from the collection of A. Lincoln Sherk, MD., collected December 18th 1912. Specimen size: 10 x 6cm. From the PA Annex of my personal ...
© 2005 M. R. Heintzelman